<template>
  <div class="filter-div">
    <m-rice-paper>
      <div class="inside-div"/>
    </m-rice-paper>
  </div>
</template>

<style scoped>

.filter-div {
  /* demo中为了更好看一点 */
  width: 400px;
  height: 400px;
  background: white;
}


.inside-div {
  margin: 25px;
  height: 350px;
  width: 350px;
  background: var(--m-color-text);
  opacity: 0.2;
  border-radius: 50%;
}

</style>
